Portable watchman&#39;s clock



R. D. KING.

PORTABLE WATCHMANS CLOCK.

APPLICATION HLED FEB. 9, 19:7.

1,365,109. Patented Jan. 11, 1921.

5 SHEETS-SHEET 1- maze/556$. EUGWZZFK' mmww R. D. KING.

PORTABLE WATCHMANS CLOCK.

APPLICATION FILED FEB. 1911.

' 1,365,109, Patented Jan 11, 1921.

5 SHEETSSHEET 2.

R. D. KING.

PORTABLE WATCHMANS CLOCK.

APPLICATION man FEB. 9. 1917.

1,365,109, Patented Jan. 11, 1921.

5 SHEETS-SHEET 3.

R. D. KING. PORTABLE WATCHMANS CLOCK. APPLICATION FILED FEB. 9. I917.

1,365,109, Patented Jan. 11,1921.

5 $HEETSSHEET 4- R. D. KING.

PORTABLE WATCHMAN'S CLOCK.

APPLICATION FILED FEB; 9, 1917.

1,365,109. Patented Jan. 11, 1921.

5 SHEETS-SHEET 5.

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ROY 1). KING, OF CHICAGO, ILLINOIS, ASSIGNOR TO M. R. NEWMAN,

PATENT OFFICE.

OF CHICAGO,

ILLINOIS.

Specification of Letters Patent.

Patented Jan. 11, 1921.

Application filed February 9, 1917. Serial No. 147,522.

To all whom it may concern:

Be it known that I, ROY D. KING, a citizen of the United States,residing at Chi cago, in the county of Cook and State of Illinois, haveinvented certain new and useful' Improvements in Portable lVatchmensClocks, of which the following is a specification.

This invention relates in general to watchmens clocks, such as arecarried by night watchmen and the like, on their rounds from station tostation in a building, each station being equipped with a key which thewatchman inserts in the clock to actuate the marking mechanism therein,which marks or re cords upon a recording dial the time at which eachstation key is used.

One of the primary objects of my present invention is to provide aclockof this character in which the clock movement will be separated andsubstantially sealed from the marking mechanism so that any dust, dirt,moisture or other foreign substance which may enter the compartment inwhich the marking mechanism is mounted, either through the key hole orwhen the cover is open, will be precluded from entering or coming intocontact with the clock movement.

Another object of my invention is to so mount the clock movement in itscase that it will not be liable to injury from jars or shocks impartedto the case, this result being accomplished by securing the movement toan intermediate wall of the case instead of attaching it directly to theouter walls of the case as has heretofore been customary.

A further object of the invention is to provide a watchmans clock whichwill be both stem winding and stem setting, thus obviating the use of awinding and setting key, and also to provide a structure which willentirely inclos e and protect the winding and setting stem so that itwill not be subjected to injury, and also to prevent its being tamperedwith by the watchman.

Another object of my inventionis the provision of a novel holder for therecording dial which is bodily removable from the case with the dial, sothat the dial can be readily removed and replaced by another, and whichis frictionally connected with the revolving staff operated by the clockmovement so thatthe removal and replacement of the holder can be quicklyand easily performed without removing and replacing any washers or nutsand also allowing the dial to be set to correct time.

Still another object of this invention is to provide a novel detector,which will make a record on the recording dial each time the cover ofthe case is opened or closed so as to thereby insure detection of thewatchman should he find the key which unlocks the clock and open it forany cause. In this connection, my invention also contemplates leaving afree and unobstructed space with in the compartment in which the markingmechanism is mounted so that the recording dial can be easily introducedand withdrawn from the case, and with this end in view my noveldetector, instead of being mounted in the case is carried by the coverso that when the cover is opened to permit removal of the dial thedetector is carried thereby entirely away from the case so that it willnot ob struct or interfere with the removal or replacement of the dial.

A further object of my invention is the provision of a dust receptaclein which any dust or other foreign substance entering the markingmechanism compartment through the key hole will be collected andretained so as to prevent it from eventually working into the clockmovement compartment.

In connection with the marking mechanism and the station key foractuating the same, my improvement contemplates the provision of asafety or fool-proof mechanism which will insure the complete actuationof the marking key before the key can be withdrawn, thus compelling thewatchman to completely operate the marking mechanisms at eachintroduction of a marking key into the case.

Other objects and many of the attendant advantages of tiis inventionwill be readily appreciated by those skilled in the art as the samebecomes better understood by reference to the following description whenconsidered in connection with the accompanying drawings. Referring tothe drawings,-

Figure 1 is a plan view partially in section looking at the recordingdial side of a clock embodying my invention;

Fig. 2 is a sectional view taken substantially on the line 2-2 of Fig. 1with the marking mechanism removed;

Fig. 3 is a fragmentary sectional detail view of my novel record dialholder;

Fig. 1 is a similar view showing the holder removed from its operatingstaff Fig. 5 is a fragmentary elevation looking toward the right at Fig.4;

Fig. 6 is a fragmentary view showing the safety registering mechanismwhich makes a record at each closing and opening movement of the cover;

Fig. 7 is a sectional view through the marking mechanism;

Fig. 8 is an end view looking down onto the mechanism shown in Fi 7;

Figs. 9 and 10 are plan and edge views, respectively, of a station key;

Fig. 11 is a sectional view on the line 11-11 of Fig. 10;

Fig. 12 is a detail perspective view of the key-retaining sprin Fig. 13is a sectional view similar to Fig. 7, but showing the position of theparts when the key has actuated the marking mechanism Fig. 14 is a Viewof the case in which the clock is contained showing the protective platefor the clock crystal; and

Figs. 15, 16, 17 and 18 are views similar to Figs. 7, 8, 9 and 10,showing a modified form of station key and key-controlling mechanism.

From an inspection of the drawings it will be manifest that my improvedclock comprises, primarily, a case consisting of the circular side walls15, the face plate 16, and the cover 17. The inside of the case isdivided into two compartments by a transverse partition wall 18,preferably formed integrally with the side walls 15, these walls beingmade of aluminum or other suitable material, cast or pressed into shape.Since the partition wall 18 extends entirely across the case it will beobvious that the two compartments into which the case is divided by thiswall are entirely separated one from the other.

The clock-movement, which is designated generally by reference character19, may be of any well known or preferred construction, the mechanicaldetails of the movement not being shown on the drawings, as theirconstruction is immaterial so far as the present invention is concerned.This movement 19 is mounted in one of the compartments of the case andis supported and partially inclosed by a circular flange or upstandingwall 21 projecting from one face of the partition wall 18, as best shownin Fig. 2. The movement is secured and maintained in position in itsmounting by means of the plate 16, which has an annular centrallyarranged opening provided with an overhanging bezel 22 which engages andholds the crystal 23 in position. An annular member 24, preferably ofsuitable spring metal, is shaped as shown in Fig. 2 to provide aninclined or tapered portion 25 lying between the crystal 23 and the faceplate 26 of the clock. The radially projecting flanged portion 27 ofthis member lies directly beneath the plate 16 and between the plate anda plurality of posts 28, which are interiorly threaded and rigidlysecured to the partition wall 18 by the screws 29,0ther screws 31extending through the plate 16 and the flange 27 and threaded into theouter ends of the posts 28, serving to securely fasten the plate 16 andthereby rigidly holding the clock movement in the position shown in Fig.2.

The hands 32 and 33 of the clock-movement are mounted upon staffs orarbors in the usual manner which are connected through suitablemechanism to the inner member 34 of the stem, by which the hands areset. The outer tubular member of the stem surroundin the member 34 is0011' nected with the winding mechanism of the clock-movement, and boththe members 34k and 35 are operated at will to either wind or set theclock by means of a stem extension 36 mounted to slide longitudinally ina bearing 37 carried in the barrel 38 and terminating at its outer endin an enlarged knurled head or button 39, by means of which the stem isrotated. The inner end 21 of the stem member 36 is bifurcated and isadapted. upon longitudinal movement of the member 36, to be engaged witheither the member 3 1- or the member 35, as desired, so that therequisite one of these members will either set or wind the clockmovement.

It will be manifest therefore that I have provided a watchmans clockwhich is adapted to be both stem wound and stem set, thereby obviatingthe use of winding and setting keys and precluding the possibility ofthe entrance of dust, moisture or other foreign substances into theclock movement through the winding and setting key holes, which haveheretofore been considered necessary in clocks of this type. When theprojecting end or enlargement 39 of the stem is in the position shown infull lines in Fig. 2 the member 36 is connected with the winding member35, and when it is desired to set the movement the end 39 is withdrawn.into the dotted line position shown in Fig. 2, thereby connecting itwith the setting member 34, and simultaneously disconnecting it from thewinding member.

The compartment on the opposite side of the transverse partition 18 fromthe compartment in which the clock movement is mounted is adapted tocontain the recording dial and the marking mechanism, which Will belater described in detail. This compartment is closed by the cover 17which is hinged at 4:2 to a metal strap 43 securely attached by screws44 to the outer side of the casing at the top thereof, this strap beingshaped to provide the outwardly extending ears 45 to which carryingstraps or the like may be attached. The cover 17 may be swung back onits hinge to entirely expose the compartment so that the recording dialsmay be readily removed and repositioned in the compartment. At the sideof the cover opposite to the hinge d2 there is hingedly mounted at as ahasp, designated generally by reference character 47, which hasp isequipped with a lock -18 adapted to enter an opening 4-9 formed in thewall of the case. The details of construction of this lock may be of anypreferred construction but in the present instance I have shown alocking member 51 adapted to be rotated by a key into the lockedposition shown in Fig. 2, wherein it enters a groove or channel 52formed in a block 58 rigidly attached to the casing structure.

For the purpose of completely covering and closing the projecting end 39of the winding and setting stem so as to prevent injury to the stem andalso preclude the watchman from tampering with the clock, the hasp isshaped so as to provide a recessed portion 54, adapted to receive andcontain the stem end 39. It will be obvious that when the cover isclosed and is locked by the lock on the hasp, as shown in full lines inFig. 2, access to the interior of the marking mechanism compartment orto the winding and setting stem cannot be had by the watchman unless heobtains possession of the key which would release the locking member 51.This key, however, is in practice retained by the man in the office, incharge of the clocks, and since the cover is closed and locked beforethe clock is given to the watchman the possibility of the watchmantampering with the lock is practically eliminated. As it may sometimeshappen that the man in charge of the clocks may, after setting anyparticular clock, forget to push the winding and setting stem inwardlyso as to disconnect it from the setting mechanism, I have soproportioned and constructed the recess 52L in the hasp 47 that it willengage with the enlarged end 39 of the stem if the stem is leftprojecting into the dotted line position shown in Fig. 2 and willautomatically move the stem inwardly into the requisite position whenthe hasp is closed against the casing wall to lock the cover in closedposition. It will be manifest therefore that I have provided not onlyfor securely locking the cover in closed position, but have also madeprovision for completely inclosing and protecting the Winding andsetting stem, and have also insured against the stem being in extendedposition when the clock is put in service.

The clock-movement 19, which forms the motive power for the clock andthe recording dial, is equipped with the usual staff 55 which projectsthrough an aperture in the partition wall 18 into the compartment on theopposite side of this partition. This staff, which is rotated by theclock-movement, is adapted to be connected with the paper recording dial56 upon which the impressions of the marking mechanisms are recorded.Heretofore it has been customary in clocks of this character toestablish the connection between the recording dial and the rotatingstaff by means of a threaded nut or washer, which must be unthreaded andremoved each time the dial is changed. My present invention, however,contemplates the elimination of such a nut or washer and provides a dialholder adapted to be bodily connected to and disconnected from the staffby a simple longitudinal movement.

This dial holder, as best shown in Figs. 3, l and 5, comprises a post57, preferably knurled at its outer ends as indicated at 58 so that itmay be readily grasped between the thumb and forefinger and rotated ifrequired, and moved longitudinally into and out of engagement with thestaff, this post being surrounded by a collar orsleeve 59 rigidlysecured thereto and provided at its lower end with a radially projectingflange or disk 1 which is equipped with a plurality of sharpenedupwardly extending pins 62. The dial holder as shown in Fig. 4 may bebodily removed from the clock and the paper record dial 56 which isprovided with a central aperture may be positioned on the holder byslipping it down over the stem 57 and forcing the pins (32 upwardlythrough the paper as shown in Figs. 3 and 4, thereby insuring that thedial will rotate with the holder. For the purpose of establishing africtional driving connection between the holder and the staff thestemis provided interiorly near its lower end with a metal socketprovided with longitudinal slits which permit the socket to expand andfit over and snugly embrace the staff as shown in Fig. 3. To connect theholder to the staff it is only necessary to force the socket downwardlyover the staff which will be firmly grasped by the surrounding walls ofthe resilient metal socket so that the holder and the dial carriedthereby will be rotated with the staff. \Vhen it is desired to changethe dial the holder can be removed by simply pulling outwardlylongitudinally upon the stem 57, thereby freeing the holder from thestaff so that the holder can be bodily removed from the case for theattachment thereto of a new dial. For the purpose of recording upon thedial 56 any unauthorized opening of the cover 17, such as might beaccomplished by a duplicate key in the possession of the watchman whichwould lit the lock 48, I have provided a registering device which willregister upon the dial each opening and closing movement of the cover. Iam aware that registering devices for this purpose have been employedprior to my present invention but so far as I know these devices havealways been mounted within the case itself, where they interfered moreor less with the insertion and removal of the recording dials. Mypresent invention contemplates the provision of a novel registeringdevice which will be mounted upon and carried by the cover so that whenthe cover is open the registering device will be removed from the clockcase, leaving the compartment unobstructed for the insertion and removalof the recording dials.

Referring now more particularly to Figs. 1 and 6, it will be observedthat upon the inner face of the cover 17 I have mounted an inwardlyprojecting housing 65 which is cored longitudinally to receive a plunger66, the plunger being normally urged outwardly in its casing by a coiledexpansion spring 67 disposed in the bottom of the core as shown in Fig.6. The projecting end of the plunger 66 is sharpened as indicated at 68so as to perforate the record sheet 56 ad jacent its periphery when theplunger is in fully extended position. The partition wall 18 is alsoprovided with a depression 69 in alinement with the sharpened end 68 soas to permit penetration of the record dial by the sharpened end of theplunger. A short distance from the housing 65there is mounted upon theinner face of the cover a post 71, upon the inner end of which there ispivoted upon a pivot pin or bolt 72 a lever 73, the free end of whichprojects through a slot 74 in the wall of the housing 65 and into anotch 75 formed in the plunger 66. Outward movement of the plunger withrespect to its housing is limited by engagement of the lever 73 with theouter end of the slot 74. Upon the inner face of the side wall 15 of thecasing and in proximity to the post 71, when the cover is closed, I havemounted a stationary pin or abutment 76 disposed in the path of movementof the lever 73. When the cover is in fully closed position as shown inFig. 6 the lever 7 3 will be held by the abutment 76 in the positionshown in Fig. 6 with the perforating point 68 of the plunger retractedfrom the recording dial so as to permit free rotation of the dial by theclockmovement. Should the cover be opened, however, initial openingmovement will permit the plunger to be projected by the. spring 67 so toperforate the record dial and the dial will be again perforated by theplunger upon closing movement of the cover just before the cover reachesentirely closed position. It will be evident that this penetration ofthe record dial by the perforating point of the plunger will bepermitted when it is considered that the stationary abutment 76 ismounted relatively close to the pivot pin 72 of the lever 7 3, so thatwhen the cover is approximately but not entirely closed the abutmentwill not hold the lever out far enough to prevent penetration of therecord dial by the point 68. It will further be evident that since theregistering mechanism is carried by the cover instead of being mountedin the clock case itself, this mechanism will be entirely removed fromthe case when the cover is opened, thereby leaving the compartmentunobstructed at that side of the ease for the insertion and removal ofthe record dial.

The marking mechanism by means of which the impressions are recorded onthe dial through the instrumentality of the keys located at the variousstation boxes, is carried by a plate 76 mounted at one side of the caseas shown in Fig. 1 and spaced from the partition wall 18 so as to permitthe record dial 56 to rotate in the space between the partition and theplate 76. The partition wall 18 is provided with a plate 77 carryingraised type in the form of figures or letters and upon the cross rod orshaft 78 mounted at its end in the upstanding flanges 79 and 81,respectively formed at opposite edges of the plate 76, there ispivotally mounted a series of marker arms 82 each having a downwardlyextending projection or head 83 provided on its lower face with adepression. 84 corresponding with the raised type 85 on the plate 77, sothat when any marker arm is depressed the record dial engaged betweenthe marker arm and the type plate will receive the impression of theparticular type shown by the plate and arm that has been operated. Themarker arms are normally held in the elevated position shown in Fig. 7by individual leaf springs 86, the upward movement being limited by across rod 87 extending transversely above the arms.

In proximity to the marker arms the easing is provided with a key hole88 (Fig. 8) adapted to receive the station or marking keys each of whichis constructed to op erate its particular marker arm. From Figs. 9, 10,and 11, it will be observed that the station key designated generally by89 is provided with an elongated laterally projecting flat bit 91adapted to overlie all of the marking arms in the case. Each key,however, is provided with a pin or projection 92 adapted to engage someparticular marking arm, and the arm which will be operated by anyparticular key depends upon the longitudinal position of the pin 92 uponthe bit. For instance, the pin positioned on the key, as shown in Figs.9 and 10, will operate the extreme inner marker arm, while if the pinwere mounted at the extreme outer end of the bit it would operate theouter marker arm, and if positioned intermediate the ends it wouldoperate some intermediate marking arm. Each station key, therefore, hasits pin 92 located in a different position longitudinally of the bitwith the result that each key will operate only the marking arm forwhich it was designed.

In alinement with the key hole and in position to receive the shank ofthe key I have mounted upon the plate 7 6 between the flanges 79 and 81a guide 93 which receives the key shank and guides and holds the key inposition. Since the key hole is open, it is obvious that more or lessdust, dirt, etc., will enter the semi-cylindrical guide, and for thepurpose of preventing this dirt and foreign matter from being depositedin the marking compartment and eventually working into the clockmovement, I have provided a receptacle into which this dirt is displacedfrom the guide at each insertion of a station key. This receptacle, aswill be best seen from Figs. 1 and 8, consists of a channel shapedmember 94L secured to the inner face of the flange 81, its ends beingclosed so as to provide a closed chamber or receptacle 95 which is openonly through an aperture 96 formed in the flange 81 in alinement withand constituting an extension of the guide 93. The keys are of suchlength that the inner end of the shank of each key will just extendthrough this aperture 96 each time the key is inserted. It will beevident, therefore, that any dust or dirt collected in the guide 93 willbe pushed by the ends of the key through the aperture 96 and depositedin the closed chamber 95 where the dust and dirt will be collected andthereby prevented from working into the clock movement. The member 94 isdetachably secured to the flange 81 preferably by screws and atintervals it may be removed for the purpose of emptying the collectedaccumulation of dust and dirt therein.

It has frequently happened in practice that even though the watchmanfaithfully makes his rounds and inserts the station keys in the clock atthe proper times, he would fail to turn the key the amount necessary tooperate the marker arm and produce an impression on the record dial. Forthe purpose of obviating this difliculty and insuring a record of eachstation key inserted in the clock, I have provided a safety orfool-proof mechanism which necessitates a complete stroke of the stationkey sufficient to actuate the marker arm before the key can be withdrawn from the case. This mechanism consists essentially of a devicewhich engages the key upon insertion into the case and preventswithdrawal thereof until a complete stroke of the key has been effected,whereupon the return stroke of the key releases the device so as topermit withdrawal of the key. The embodiment of this mecha nism which Ihave selected for purposes of illustration, is best shown in Figs. 7 to13 inclusive.

Referring now to these figures, it will be observed that adjacent to theguide 93 I have mounted upon the plate 7 6 a block 97 secured to theplate by the screw 98 and pin 99, or otherwise, and upon the inwardlyprojecting end of this block there is mounted a resilient flat springmember 101 which is secured to the block adjacent one end by screws 102,which pass through an overly ing bar 103 and through the openings 10 1in the spring plate, thereby securely clamping the plate to the block.It will be observed from Figs. 7 to 12 that one corner of the plateadjacent to the block is down turned as indicated at 105, thisdownturned portion being disposed in the path of the key when the sameis inserted in the case. The bit of the key, as shown in Figs. 9, 10,and 11, is provided with an annular depression 106 providing a straightshoulder 107 which is engaged by the downturned edge of the spring plate105 when the key is fully inserted. In other words, upon insertion ofthe key the bit travels beneath the spring plate forcing the same upwardslightly until the notch 106 is disposed beneath the downturned edge ofthe plate, whereupon this edge springs downwardly into the notch,engages behind the shoulder 107 and prevents withdrawal of the key.

Between the inner end of the block 97 and the upturned flange 81 of theplate 7 6, there is pivotally mounted upon a rod 108 a yoke shapedmember 109 which is provided with a projection 111 disposed immediatelybeneath and in contact with the downturned edge of the spring plate 101.Between the free ends of the yoked member 109, I have pivotally mountedupon a pin 112 another member 113 which is provided intermediate itsends with a downwardly extending projection 114; which is disposed inthe longitudinal path of movement of a key being inserted. The edge ofthis projection opposed to the key is provided with an inclined face 115so that when a key is inserted engagement of the inner end of the keybit with this inclined face will swing the member 113 upwardly from theposition shown in Fig. 13 to that shown in Fig. 7, so that the member113 rides on the face of the key bit. Since when the key is fullyinserted the spring plate prevents withdrawal thereof, the watchman mustturn the key in a counterclockwise direction viewing Figs. 7 and 13,into engagement with a marker arm to operate the same as shown in Fig.13. This oscillatory movement of the key causes the bit to travellaterally from beneath the projection 11 1 on the member 113, whereuponthis member swings downwardly on its pivot under the influence of alight contractile spring 116, the downwardly swinging movement of themember 113 being limited by a stationary stop pin 117 projecting fromthe flange 81. The key is now freed from the spring plate 101, butcannot be withdrawn through the key hole until returned to normalposition in alinement therewith.

Upon the return stroke of the key, or in other words, swinging movementof the key in a clockwise direction viewing Fig. 13, the forward edge ofthe key would engage with the projection 11 1 and carry the member 113upwardly, viewing Fig. 13, against the force of the spring 116, thismovement being permitted by swinging movement of the member 109 on itspivot 108. This swinging movement of the member 109 forces itsprojecting shoulder 111 against the spring plate 101, thereby movingthis spring plate out of engagement with the key so that the springplate is released from the shoulder 107, and the key is freelywithdrawn. Upon withdrawal of the key, the members 109 and 113 reassumethe position shown in Fig. 13, the swinging movement of the member 109being limited by a stop pin or rod 118 proj ecting from the block 97.Upon reinsertion of the key the member 113 will be swung upwardly on itspivot again into the position shown in Fig. 7 and the spring plate willengage the notch in the key and prevent withdrawal so that it isimpossible to withdraw the key until the marking mechanism has beenactuated. The actuation of the marking mechanism brings the key into theposition shown in Fig. 13, and return movement, by reason of engagementof the key with the projection 114, will again swing the member 109 onits pivot to release the spring plate through the instrumentality of theprojection 111. It will thus be seen that a complete actuating stroke ofthe station key must be effected before the key can be withdrawn fromthe clock. Consequently, any failure to record a station on the dial cannot be the result of a failure to properly manipulate the station key,but must be caused by failure of the watchman to visit that station andinsert its key in the clock. It will further be evident that by varyingthe length or position of the spring plate and by varying the positionof the notch on the keys, the likelihood of the watchman duplicating astation key or substituting another key in the clock in place of the onelocated at any particular station can be practically obviated.

In practice, a clock such as has been described is mounted in a caseusually of leather and is carried by straps swung over the watchmansshoulder so that the clock is suspended in front of the watchman inconveniently accessible position. As in making the rounds the watchmanis apt to break the crystal of the clock if the same is left exposed, ithas been customary to cover the opening in the case through which theclock face is observed with a wire guard. The wires of the guard,however, interfere with the observation of the hands of the clock, andwith a view of overcoming this objection to a guard and at the same timeaffordingadequate protection for the clock crystal I have provided aprotector which is illustrated in Fig. 1 1. Referring to this figure,character 11.9 indicates the leather case in which the clock 120 ismounted. The side opening 121 through which the face of the clock isobserved is covered by a protector plate 122 made of metal of suitableweight which is pivoted to the case 119 above the clock face upon apivot pin 123. This protector plate overlies the face of the clock andadequately protects the crystal against breakage or injury, and when thewatchman may desire to look at the clock he needs simply to swing theprotector plate on its pivot from the position shown in full lines inFig. 14L to that indicated in dotted lines, thus fully exposing theclock face. After he has observed the time he will release the protectorplate, which will then swing under the influence of gravity about itspivot pin into the full line position shown where it fully covers andeffectually protects the clock face and its crystal.

In the form of my invention shown in Figs. 15 and 16 the leaf or flatspring 101 is omitted and the projection 111 formed on the member 109 asshown in Fig. 7, for the purpose of moving the fiat spring away from thenotch of the key is extended into a key-engaging projection 125 as shownin Fig. 15. The key 89 in this instance is provided with a notch 126adapted to receive the projection 125 by means of which the key isprevented from withdrawal until this projection is released. The innerend of the key bit is chamfered off or inclined as shown at 127 so thatthe projection 1.25 on the yoke member 129 will be forced out of thepath of the key upon insertion of the key, but when the key has beenfully inserted the projection 125 will be engaged in the notch 126 underthe influence of the spring 11.6. Upon movement of the key to markingposition, as shown in Fig. 13, the shoulder 114 on the member 113 willdrop back of the key and upon return movement of the key away from themarking mechanism the members 113 and 109 will be moved bodily in aclockwise direction, viewing Fig. 15, about the bearing rod 108 as apivot, thus moving the projection 125 away from the key and preventingits engagement inthe notch 126. The key may now be withdrawn, whereuponthe members 109 and 113 will assume their normal position under theinfluence of the spring 116, and upon reinsertion of the key theprojection 125 will reengage in the notch 126 and prevent withdrawal ofthe key until after the marking mechanism has been operated.

It is believed that my invention and its mode of operation will beunderstood from the foregoing without further description, but, itshould be understood that my invention is capable of embodiment inconstructions differing materially in structural details than thoseillustrated and described vention or sacrificing any of its materialadvantages.

I claim: v

1. A watchmans clock comprising a case, aclock-movement and registeringmechanism mounted therein, a stem connected with said movement andprojecting outside said case whereby said movement may be wound and set,said stem being longitudinally movable from setting to winding position,and means normally covering said projecting stem when said case isclosed.

2. A watchmans clockcomprising a case, a clock-movement and registeringmechanism mounted therein, a longitudinally movable manually operablestem whereby said movement is wound and set, said stem projectingoutside said case into accessible position, a hinged cover adapted toclose over said registering mechanism, and a locking hasp carried bysaid cover, said hasp being adapted to inclose the projecting portion 01said stem when the cover is in closed position.

3. A watchmans clock comprising a case divided by a transverse partitioninto two compartments, a clock-movement mounted in one of saidcompartments, registering mechanism mounted in the other compartment, astem projecting from said movement outside the case whereby the clockmay be manually wound and set, a hinged cover adapted to close thecompartment in which the registering mechanism is mounted, a hasp hingedto said cover, and a lock carried by said hasp whereby the cover islocked in closed position, said hasp being provided with a recessadapted to receive and iuclosesaid winding and setting stem when saidcover is in closed position.

4. A watchmans clock comprising a case, a clock-movement mountedtherein, a winding and setting stem connected with said movement andprojecting outside said case, said stem being longitudinally movablefrom winding to setting position, a cover for said case, and meanscarried by said cover for automatically moving said stem from setting towinding position when the cover is moved into locked position.

5. A watchmans clock comprising a case, a clock-movement mountedtherein, a wind ing and setting stem connected with said movement andprojecting outside the case, said stem being adapted to be partiallywithdrawn for setting purposes, a hinged cover for said case, a haspcarried thereby, and a lock moimted on said hasp whereby the cover islocked in closed position, said hasp being constructed to overlie andinolose the projecting portion of said stem and to move said steminwardly from set-- ting to winding position when the hasp is moved tolocking position.

6. A watchmans clock comprising a case, a clock-movement mountedtherein, a rotatable staff projecting from said movement, and anindicator dial holder detachably connected to said staff, said holderincluding a stem, a disk carried thereby and indicator dial perforatingpins mounted on said disk.

7. A watchmans clock comprising a case divided by a transverse partitioninto two compartments, a clock-movement mounted in one of saidcompartments, a rotatable staff projecting from said movement throughsaid partition, and a dial holder including a post, a disk and dialholding pins detachably and frictionally engaged with the projectingportion of said sta ff.

8. A watchmans clock comprising a case divided by a transversepartition, a rotatable staff projecting from one face of said partition,and a bodily removable dial holder adapted to carry a registering dial,said holder including a "l6lCllI1 socket adapted to be frictionally anddetachably engaged with said staff.

9. A watchmans clock comprising a case, a rotatable staff therein, and abodily removable dial holder detachably engageable with said staff, saiddial holder including a yielding socket for frictionally engaging thestaff, a disk provided with means for engagement with a registeringdial, and post by which said holder is moved relatively to the staff.

10. A watchmans clock comprising a case, a cover therefor. a registeringdevice yieldingly carried by said cover, and means carried by said casefor retracting said device from operative position when the cover isfully closed.

11. A watchmans clock comprising a case, a hinged cover therefor, aregistering device yieldingly mounted on said cover and projectinginwardly therefrom, a lever pivotally carried by said cover and engagedwith said registering device, and a fixed abutment mounted in said casein the path of said lever whereby said device is retracted fromregistering position when the cover is fully closed.

12. A watchmans clock comprising a case, a hinged cover therefor, ayieldingly mounted registering device projecting inwardly from saidcover, and means including a lever carried by said cover and a fixedabutment mounted in said case for retracting said device fromregistering position when said cover is fully closed.

13. A watchmans clock comprising a case, a hinged cover therefor, arotatable registering dial mounted within said case, a reg isteringpunch mounted on the cover, means for yieldingly urging said punch intoregistering relation with said dial when the cover is in approximatelyclosed position, and means including a lever carried by the cover and afixed abutment within the case whereby said punch is withdrawn from thedial when the cover is fully closed.

14. A watchmans clock comprising a case, marking mechanism mountedtherein, a key adapted to actuate said marking mechanism, a guide forsaid key, and a receptacle arranged to receive the dust removed fromsaid guide by the insertion of the key.

15. A watchmans clock comprising a case divided by a partition into twocompartments, a clock-movement mounted in one 0t said compartments,marking mechanism mounted in the other compartment, a key adapted toactuate said marking mechanism, a. guide for said key, and a receptaclearranged to receive and contain the dust removed from said guide by theinsertion of said key.

16. Awatchmans clock comprising a case, marking mechanism mountedtherein, a key for actuating said marking mechanism, a channel-shapedguide for said key, and a dust receptacle mounted at the inner end ofsaid guide in position to receive the dust displaced by said key.

17. A watchmans clock comprising a case, a dial marking mechanismmounted therein, a key for actuating said mechanism, and means engagingsaid. key upon insertion thereof into the case for preventing withdrawal of the key until said key has been moved to actuate said markingmechanism.

18. A watchmans clock comprising a case, dial marking mechanism mountedtherein, a key for actuating said mechanism, a yielding member arrangedto engage said key immediately upon insertion thereof into the case soas to prevent withdrawal of the same,

and means for releasing said member from the key only after said key hasbeen moved into cooperative relation with said marking mechanism.

19. Awatchmans clock comprisingacase, dial marking mechanism mountedtherein, a key for actuatin said mechanism, ayielding device adapted toengage said key immediately upon insertion thereof into the case andprevent withdrawal of the key, and means actuated by said key upon itsreturn stroke after engagement with the marking mechanism for releasinsaid device to permit withdrawal of the ey.

20. A watchmans clock comprising a case, dial marking mechanism mountedtherein, a key for actuating said mechanism, a member adapted to engagesaid key immediately upon insertion thereof into the case to pre ventwithdrawal of the key, and a key-actuated device for releasing saidmember from the key upon return movement of the key away from saidmarking mechanism.

21. In a watchmans clock, the combination of a case, dial-markingmechanism mounted therein, a key for actuating said mechanism, said keybeing provided with a notch, a member arranged to engage in said notchupon insertion of the key so as to prevent withdrawal thereof, and meansfor releasing said member upon return movement of the key away from themarking mechanism, said means including a pivotally mounted memberprovided with an inclined projection normally disposed in the path ofmovement of the key.

A watchman s clock, comprising a case, dial-marking mechanism mountedtherein, a notched key for actuating said mechanism, a member adapted toengage in said not-ch upon insertion of the key, and means for releasingsaid member from the key, said means including a pivotally mountedmember provided with a projection disposed in the path of said key, anda spring for retaining said members in normal position.

28. A watchmans. clock, comprising a case, dial-marking mechanismmounted therein, a key for actuating said mechanism, pivoted memberadapted to control the withdrawal of said key from the case, and akey-actuated member pivoted on said first member for operating the sameupon return movement of the key away from the marking mechanism.

ROY D. KING.

